21723213

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8863}}^1$

素因数の和:8928

約数の個数: 16

約数和(自身を含む): 31201280

約数和(自身を除く): 9478067

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8863, 26589, 168397, 381109, 505191, 1143327, 7241071, 21723213]

約数ペア:

[(1, 21723213), (3, 7241071), (19, 1143327), (43, 505191), (57, 381109), (129, 168397), (817, 26589), (2451, 8863)]